A demanding and discreet market
Nuclear and heavy industry form a world apart in construction. Jobsites take place in controlled environments where every operation is framed, documented and inspected. Major clients (nuclear utilities, large industrial groups) impose very precise technical specifications on subcontractors: certified equipment, complete traceability, qualified operators, written procedures, quality control at each step.
Sept Tools has been active on this market for several years with specialised subcontractors. Our brushless equipment is appreciated for three precise technical reasons: the absence of sparks, the industrial service life and the simple traceability.
Cooling tower and dome refurbishment
One of the most emblematic operations where Sept Tools is involved is the refurbishment of cooling towers and reactor domes at nuclear plants. These reinforced concrete structures undergo intense thermal and hydric cycles, which causes cracking, delamination and loss of surface cohesion. Maintenance plans cyclical refurbishment operations: stripping the degraded layer, opening technical channels for instrumentation, bush hammering the surface to prepare the application of a new protective coating.
For these operations, the combination Desman or Taupe groove cutter + Gazellomur Bush Hammer forms a winning duo. The groove cutter opens clean rectilinear channels for instrumentation routing. The bush hammer generates the roughness profile (CSP 7 to CSP 9) necessary for optimal adhesion of the new coating. And all this is done with brushless equipment that introduces no spark in the controlled environment.
Decontamination and surface preparation
Beyond domes, nuclear subcontractors intervene for targeted decontamination operations on identified contaminated areas (concrete, metal). Grinding is then the preferred method because it allows removal of a few millimetres of surface layer while capturing all particles at the source. Our Petit Potam and Fouine XB165, connected to an IU33 Longopac class H, cover these interventions with the necessary precision.
Bush hammering is also used in surface preparation before the application of specific industrial coatings (protective resins, repair mortars, high-temperature paints). The Potam and Fouine bush hammers can treat both vertical surfaces and undersides without changing tool families.
Brushless reliability in an industrial context
On a paced industrial jobsite, every machine downtime translates to lost man-hours. When a subcontractor has to deliver 800 m² of bush hammering in six days to meet a scheduled maintenance window, the slightest breakdown becomes a critical problem. This is where brushless service life makes its full sense: 4,000 to 6,000 hours without intervention versus 600 hours for a brushed motor.
In field feedback from our industrial clients, the 5-year failure rate is below 0.8 % even though machines often run more than 30 hours per week. This industrial reliability is what distinguishes Sept Tools from generalist manufacturers.
Documentation and traceability
Quality audits from major clients require seeing each machine’s identification record, serial number, technical sheet, usage and maintenance history. Sept Tools delivers this whole dossier as standard at delivery, and our after-sales service can provide a duplicate of all documentation at any time.
This documentary approach is also what simplifies life for quality managers at our subcontractor clients: they know that with Sept Tools, they will have all the elements to answer an audit in less than 30 minutes. On this market where contracts are won as much on administrative quality as on technical performance, it is a tangible advantage.
